Discussed generally herein are methods and devices for sensing biological function using a flexible, stretchable patch. In one or more embodiments, a device can include a stretchable, flexible first substrate material mechanically coupled to and on the stretchable, flexible fabric, and first metallization mechanically coupled to and on the first substrate material, the first metallization including first pads, meandering traces, and at least one of electrocardiogram (ECG) electrodes, a stretch sensor, and at least one stretch limiting patch.